You can now watch YouTube videos on Safari on your iPhone, iPad and iPod Touch devices. YouTube Mobile now has HTML5 support for mobile browsers.

Mozilla is trying to incorporate the VP8 codec of WebM video into the HTML5 web video specification. Most other browsers are in support of H.264 currently.

At Google I/O a new competitor to H.264 has been announced. Opera, Mozilla and Google’s browsers will support WebM for HTML5 video, leaving Apple and Microsoft to support H.264

Developers can use <video> tag and play videos in every browser using a JavaScript library called html5media. Html5media will play HTML5 videos in browsers which support it and use an alternative player for those which do not support HTML5 <video> tag.

Internet Explorer is one of the several mainstream browsers which do not support HTML5 videos which is now being beta tested by YouTube and Vimeo. Xiph.Org Ogg Codec provides users with an option to add support for the <video> tag support in Internet Explorer, in turn allowing IE to play HTML5 videos.

YouTube and Vimeo are now supporting HTML5 Videos. One of the most exciting feature in HTML5 is that it has support for streaming videos through the video tag, without having to use any other additional resources or software such as Flash.